After coronary interventions patients get treated with a dual antiplatelet therapy with ASS and Clopidogrel to reduce the peri- and postinterventional risk for thrombotic complications. It is known that there is an individual, non uniform response to treatment with Clopidogrel. Especially the polymorphically expressed liver enzyme CYP2C19 has influence on the Clopidogrel metabolism and therefore its effects in patients. Aim of these two studies has been to inquire the isolated and mutual influence of the two most common CYP-alleles (CYP2C19*2 and CYP2C19*17) on the Clopidogrel metabolism by examinating the activation of Clopidogrel depending on the genotype and thereby to show a connection to ischemic events (*2) or bleedings (*17). Furthermore the interaction of Clopidogrel and Omeprazol regarding its effect on the ADP-induced platelet aggregation has been object of these studies. The alleles were identified by genotyping, platelet function was tested with the Multiplate Analyzer. Depending on the genotype and the hereby changed metabolism there is a higher risk for bleeding in patients carrying the *17-allel respectively an increased risk for ischemic events like stent thrombosis for *2-carriers. Concerning the influence of an interactive effect of Clopidogrel and Omeprazol, it was possible to show an independently inhibitory effect on the Clopidogrel metabolism.
«
After coronary interventions patients get treated with a dual antiplatelet therapy with ASS and Clopidogrel to reduce the peri- and postinterventional risk for thrombotic complications. It is known that there is an individual, non uniform response to treatment with Clopidogrel. Especially the polymorphically expressed liver enzyme CYP2C19 has influence on the Clopidogrel metabolism and therefore its effects in patients. Aim of these two studies has been to inquire the isolated and mutual influen...
»